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- 10 Jan 2014
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Hi guys,
I think I've had determined a problem with the ghosting of brickwork showing through recently plastered and emulsions walls, but now need some help with a fix.
I have two, external, walls on the first floor of the house where the plaster on the chimney breast had been knocked back to the brickwork and re-plastered (a couple of months ago).
Since then the pattern of the brickwork shows through. As I assumed that this was as a result of the plaster not drying out properly I emulsioned the walls with a permeable/breathable paint.
The brickwork pattern (ghosting) still shows through and it would appear the reason is hyrgoscopic salt contamination. The old plasterwork was sand/cement based whereas the new plaster isn't.
I know one option is to knock the plaster back again and re-plaster with a more suitable solution, but I was wondering whether there are any other solutions.
I've read about applying a vinegar solution, damp proof paint or a PVA based solution, but I, not sure whether any of these will solve my problem.
Does anyone have any experience/knowledge of a remedy that isn't re-plastering?
Thanks in advance all!
Phill
I think I've had determined a problem with the ghosting of brickwork showing through recently plastered and emulsions walls, but now need some help with a fix.
I have two, external, walls on the first floor of the house where the plaster on the chimney breast had been knocked back to the brickwork and re-plastered (a couple of months ago).
Since then the pattern of the brickwork shows through. As I assumed that this was as a result of the plaster not drying out properly I emulsioned the walls with a permeable/breathable paint.
The brickwork pattern (ghosting) still shows through and it would appear the reason is hyrgoscopic salt contamination. The old plasterwork was sand/cement based whereas the new plaster isn't.
I know one option is to knock the plaster back again and re-plaster with a more suitable solution, but I was wondering whether there are any other solutions.
I've read about applying a vinegar solution, damp proof paint or a PVA based solution, but I, not sure whether any of these will solve my problem.
Does anyone have any experience/knowledge of a remedy that isn't re-plastering?
Thanks in advance all!
Phill
